package com.shs.riggy.config;

import com.shs.riggy.common.JacksonObjectMapper;
import lombok.extern.java.Log;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

/**
 * @Author 晚点再动心
 * @Date 2022/9/9
 */
// 静态资源默认放在 resources/static或templates目录下，不然，就需要进行相应的配置
@Configuration
@Slf4j
public class WebMvcConfig extends WebMvcConfigurationSupport {
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        // 将请求路径 /backend/** 映射到 项目静态资源目录 resources/backend 下
        log.info("==================开始进行静态资源映射======================");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
        log.info("==================静态资源映射完成======================");

    }

    /**
     * 扩展SpringMVC的消息转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {

        log.info("=================开始使用消息转换器对象转换数据！===================");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用jackson将java对象转换成json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
}
